Bilge-water pump



(No Model.)

BILG E WATER PUMP. No. 373,725. Patented Nov. 22, 1887.

Wiinwaask zz emr Jiili fliarngy UNITED STATES PATENT rricn.

ALONZO COOK, OF ST. PAUL, MINNESOTA.

BlLGE-WATER PUM P.

SPECIFICATION forming part of Letters Patent No. 373,725, dated November22. 1887.

Application filed November 23, 1886. Serial No. 219,646. (No model.)

To all whom it may concern.-

Be it known that I, ALONZO 000K, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented a certain new and useful Bilge- VVater Pump; and I dodeclare the following to he a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being bad to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention is a new bilge-water pump; and it consists in the novelconstruction and arrangement of its parts.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewof my invention with the lower point of the pump-pipe set in position.Fig. 2 is a longitudinal sectional view of the same with the lower pointof the pump-pipe drawn up against the bottom of the vessel. Fig. 3 is alongitudinal sectional view of the same, showing the manner ofprotecting the lower point of the pump-pipe in rivers and shallowwaters, in which case the lower point of the pump-pipe is made of someflexible material. Fig. 4 is a top view of netting made of iron, steelwire, or other suitable material. Fig. 5 is a view showing the rear faceof the lower end of the pump-pipe and of the strainer c.

Fig. 1 represents the pump in working order when the vessel is passingthrough the water.

The pump consists of a tube, a, which is divided into two parts andhinged together by a hinge, I), just below the bottom of the vessel.

The upper part of' the tube a has extending from its upper end a flange,by which it is socured to a solid timber, a; or, in case the bottom ofthe vessel is strong enough and thick enough, or in case it is made ofiron, the said tube a may be secured directly to the inner face of thebottom of the vessel. The lower end of the tube a? has its rear side outoff at an angle, leaving the front coming down to a point. The hingedpart of this tube at has secured in its front side by any usual method acircular brace, c, the free end of which passes through an opening, a,in the bottom of the vessel, thence through c, which is a rubber plateor other suitable stuffing, to keep the vessel from leaking at thispoint.

e is a sleeve through which said brace 0 passes, and is secured in placeby a pin which passes through the perforation o in said brace andcorrespondingly through said sleeve. The free end of the brace c has itsupper end turned out squarely, forming an arm, d, which is adapted to behooked over the arm d of the bar d one end of which is secured to thebottom of the vessel in rear of the pump.

Over the top of the pump and inside of the vessel there is secured astrainer, 6, made of suitable material, to prevent any large substancesfrom running into the pump and choking it. At the lower end of the shellor pipe a is secured another network, 0, to prevent drift-wood or anyother large substances from passing up into the pump and choking it. Inthe said pipe a, near its upper end, is secured two hinged valves, f,which, when the vessel is in motion and the pump is in operation, falldown and rest against the block f, which is large enough to hold themout at a considerable angle, so that when the vessel stops the force ofthe water will throw them back against the shoulder f inside the pipe.

When I wish to unship the pump, I draw up through the bottom of thevessel the quarter-circle brace c,which brings the hinged end a of thepump up against the bottom of the vessel, so that drift-wood will sheeroff. The arm d of said brace is hooked over the arm d of the bar (1which holds the said point a up in place against the bottom of thevessel, and a pin is then put through the perforation c and the sleeve 0which makes an additional fastening.

My bilge-water pump, when made for ves sels that navigate rivers orother shallow waters, has its lower end, 017, made of flexible material, and the vessel has in its bottom a recess, 9, into which thesaid flexible end of said pipe may be withdrawn until its rear or lowerface is flush with the bottom of the vessel. In all other respects it islike the one above described.

The operation of the pump is as follows:

When a vessel moves forward, the lower end of the pipe plowing throughthe water leaves behind it a track and produces suction,which draws thewater from the bottom of the vessel into the stream. When the vesselstops, the

hinged valves f are immediately closed by the pressure of the waterbelow, when no water escapes up through them into the vessel, becausethey are made perfectly water-tight. When I'do not wish to operate thepump, I draw the lower end of the pipe up against the bottom of thevessel, as above described. The upper end ofthe pipe at is adapted tofit in the collar a in the lower end of the pipe a, so that it isperfectly strong and watertight.

When a vessel is standing still, Fig. 2 shows the valves closed,with thesame resting against the collar or flangef, stopping all water fromcoming into the hull. This pump is made of copper, brass, or othersuitable. material for lakes or seas, and can be hung up in the holds ofvessels, to be used on short notice by the help of a divingarmor to makeconnection with the quarter-circle andwith the shell or pump a.

These pumps are to be made of a size to comport with the tonnage of thevessel.

In case of derangement of the valve, permitting retlow and inflow ofwater into the vessel, the opening of the upper end of the pump may becovered with a cap or stopped with a plug or other appliance.

The projecting body of the pump below the hull may be strengthened andsecured from accident by guards.

Having described my invention.what I claim as new, and desire to secureby Letters Patent, is

1. Abilge-water pump consisting of the shell a, secured in the bottom ofthe vessel, having on its interior face the shoulders f and near itslower end screen or strainer e, hinged in the center of said shell a,the valves f, held open by block f and adapted to shut up againstshoulder f the lower pipe, a, secured to the lower end of shell a andhaving its rear side out off at an angle, circular brace 0, havingperforations cc and on its free end arm (1, one end secured in the lowerend and front'side of pipe a and its free end Working through opening 0in the bottom of the vessel, through collar c and sleeve 0", and bar d,one end secured to the bottom of the vessel, its arm d adapted to holdthe arm d of brace c, substantially as shown and described.

2. A bilge-water pump consisting of the shell a, secured in the bottomof the vessel, having 'on its interior face shoulder f and near itslower end strainer e, and hinged in its center, valvesf, held open byblockf and adapted to shut up against said shoulder 1", lower pipe, afitted to the lower end of shell a, circular brace 0, having one endsecured in the lower end and the front side of pipe a, its other endworking through opening 0 in the bottom of the vessel, and sleeve 0provided with suitable stuffing, and arm d, adapted to fit over arm d ofbar d or other equivalent fastening, substantially as shown anddescribed.

In testimony whereof I affix my signature in presence of two witnesses.

ALONZO COOK.

Witnesses:

VVILLIAM A. HANSON, JOHN K. 000K.

